Igniting means for explosive-engines.



PATENTED OCT. 8, 1907 B. BOTKOWSKI. IGNITING MEANS FOR EXPLOSIVE ENGINES.

APPLICATION FILED AUG. 27. 1903.

2 SHEETS-SHEET 1.

Invemof ame m' Wil i; asses:

PATENTED OCT. 8, 1907.

B. BOTKOWSKI. IGNITING MEANS FOR EXPLOSIVE ENGINES.

APPLICATION FILED AUG, 27.1903,

2 SHEETSSHEET 2 jm'enio'r :5 I

Wz'in egses:

UNITED STATES PATENT OFFICE.

BORIS BOTKOWSKI, OF NEW YORK, N. Y., ASSIGNOR TO DE LA VERGNE MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

IGNITING MEANS FOR EXPLOSIVE-ENGINES.

Application filedAugust 27,1903. Serial No. 170,931.

To'all whom it may concern:

Be it known that I, BORIS BOTKOWSKI, a subject of,

State of New York, have invented certain new and use-' ful Improvements in Igniting Means for Explosive- Engines, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to explosion engines and particularly to the explosion producing means thereof, and has for its principal object the enrichment of the explosive medium or mixture of gases in the explosion chamber at the point of ignition so as to permit the explosion of a charge of weak explosive medium.

According to my invention a supplementary charge of highly explosive fuel is injected in proximity to the point of ignition or igniting spark, and ignition is thereby assured at the ignition or sparking point and a flame produced capable of igniting the weakest explosive mixture. f.

I will now describe the device embodying my invention illustrated in the accompanying drawings and will thereafter point out my invention in claims.

Figure l is a diagrammatic view of my device showing also the controlling and operating means. Fig. 2 is an enlarged horizontal section of the sparking and enriching device on the line 2--2 of Fig. 4. Fig. 3 is an enlarged vertical section otthe same, on the line 3-3 of Fig. 4, showing the-sparking device removed from its socket. Fig. 4 is a front end view of the sparking and enriching device. Fig. 5 is a rear end elevation of the same partially in section. 4

The operating parts comprise an operating pin 1,

located upon a crank or wheel 2 attached 'to arotating shaft of the engine. Engaging or abutting the operat- ,ing pin is an arm 3 attached to the armature 4 which oscillates between the poles 5 of a field magnet of a dynamo or magneto generate Attached to the generator shaft and to the arm 3 isa lever 6 carrying a pivot for the operating arm 7 and also carrying a pivot for a spring controlled arm 8. The spring controlled arm 8 operates in a cylinder 9 provided with an air vent l0 and is provided with a piston 11 working freely in the cylinder 9, and acts to return the lever arm 6, 3, to normal or starting position and by the rapidity of its spring actuation to generate the sparking current'in the armature 4. The operating arm 7.is provided with a turnbuckle 13 for nice adjustment of its length and has a flattened portion at its end having two shoulders, the shoulder 14 for actuating the sparking lever 6i the movable electrode and the shoulder 15 carrying a stop screw-l2 which contacts with and actuates the fuel supply valve. Y

The igniting device is shown as a lever sparking de vice and comprises a fixed electrode 19 on a conductive Specification of Letters Patent.

Patented Oct. 8, 1907.,

stem 28 suitably held in insulator plugs in the igniter body 16, and also comprises a movable electrode 27 carried upon the shaft '32, this shaft32 being fitted to oscillate in bearings in the igniter body and having an actuating lever 25 at its outer end. This actuating lever 25 is held by a spring 36 in its normal position with the movable electrode 27 against the fixed electrode 19, and is actuated by the shoulder 14 of the operating arm 7 as the armature of the generator approaches the completion of its current inducing stroke under the actuation of its retraction spring 9. The blow of the shoulder 14 upon the actuating lever 25 causes the movable electrode 27 to be suddenly withdrawn from contact with its cooperating fixed electrode 19 at the moment when current is flowing through such electrodes from the armature of the generator, and thereby produces a fuel igniting spark which jumps from the fixed electrode to the movable electrode. It will be noted that as the armature and movable electrode are both operated by the operating pin llocated upon a crank or wheel 2 connected with the rotating shaft of the engine, the spark may be produced at any given desired instant in the working cycle of the engine.

The fuel supply valve comprises a hollow supply tube 20; fitted to oscillate in hearings in the igniter body and having at its inner end a conical shoulder or valve 22. A valve duct 23 leads from the hollow bore of the supply tube 20 to the conical face of the shoulder of valve 22, and a discharge duct 24 is formed in the bearing of the supply tube, leading from the seat of the valve 22 and directed toward the point of sparking of the igniting device. The supply tube 20 would be suitably connected to a source offiuid-fuel, such as carbureted gas, under sufiicient pressure to enter the combustion chamber against thepressure of-gases therein. Normally the valve duct 23 and the discharge duct 24 are not in alinement, but when the supply tube is actuated, the valve duct comes in line with the discharge duct and the fuelsupply is discharged through these ducts toward the point of sparking. The valve is l.eld tight by an expansion spring 21 working between the bearing of the supply tube 20 and a collar 38 secured upon the supply tubef An actuating lever 29 is pro-.

vided at the outer end of the supply tube and is nor-- justing the length of the operating arm permit the supply valve to be opened and the movableelectrode to be operated at any desired instant to produce the igniting spark. By discharging the fuel toward the point of sparking immediately before the spark is formed, an enrichment of the mixture or medium at and in immediate proximity to the point of ignition is obtained, resulting in the production of a [lame at the point of ignition such as will readily cause ignition of the entire body of explosive medium in the explosion chamber.

It is obvious that various modifications may be made in the construction shown and above particularly described within the. spirit and scope of myinvention.

What I claim and desire to secure. by Letters Patent isz- 1. In combination with the combustion chamber of an internal combustion engine, a movable electrode and fixed electrode, an actuating lever for the movable electrode, a valve for supplying supplemental fuel enriching fluid, an actuating lever for such valve, and an operating lever provided with means for successively operating the actu aiing levers of such valve and the movable electrode.

2. In combination with the combustion chamber of an internal combustion engine, a movable electrode and fixed electrode, a supplemental fuel supply valve having a discharge duct located in proximity to the point of sparking, and common operating means for the supply valve and movable electrode. 7

3. In combination with the combustion chamber of an internal combustion engine, a movable electrode and fixed electrode, a supplemental fuel supply valve, an igniter body carrying the movable electrode and fixed electrode and the supplemental fuel supply valve, retractive means for normally holding-the movable electrode in contact with the fixed electrode and for normally holding the valve closed, and common operating means for both the movable electrode and the supplemental fuel supply valve.

4. The combination of an explosion chamber and charging means therefor, an electric igniting device, a supply tube having a valvcshouldcr thereon, such valve shoulder having a valve duct therein, a bearing for such supply tube having a seat for such valve shoulder andn supply duct through such seat, and terminating in proximity to the point of ignition, retractive means for holding the valve shoulder to its seat, and means for rotatively operating the supply tube, substantially as set forth.

5. The combination with the combustion chamber of an internal combustion engine, of a supplemental fuel supply valve, an igniting device, an oscillating arm actuated by the engine and operating an electric current generator, and an operating arm connected to said oscillating arm and actuating in common the supplementary fuel supply valve and the igniting device.

6. The combination, with the combustion chamber of an internal-combustion engine, of an igniting device therein, supplementatfiiel-injecting means, and means for operating the igniting device and the supplemental-fnel-injecting means constructed and operating to begin the fuel injection before the operation of the igniting device and to interrupt it substantially at the instant of ignition.

7. The combination, with the combustion chamber of an internal-combustion engine, 01' an igniting device therein, su1)plcmentaLfucl-injectiHg means, and means for operating the igniting device and the supp]omental-fuel-injectlng means constructed and operating to begin the fuel injection before the operation of the igniting device and to intcrrupt it substantially at the instant of ignition, said operating means being adjustable to vary the time at which the fuel injection begins.

8. The combination, with the combustion chamber of an internal-combustion engine, of an igniting device therein. supplcmentatfuelinjectingmeans provided with an admission valve, and means for operating the igniting device and the valve constructed and operating to open the valve before the operation of the igniting device, and to close the valve and operate the igniting device substantially simultaneously. I

t). The combination, with the combustion chamber of an internalcombustion engine, of an igniting device therein provided with an external operating lever, a supplcmcntab t'uel valve provided with an operating lever, and an actu ating member for said levers operating in timed relation with the engine and provided with abutments arranged to engage and actuate said levers alternately when the ucin ating member is reciprocatcd.

10. The combination, with the combustion chamber of an internal-combustion engine, of an igniting device located therein, and means, operating independently of the menus for supplying the engine with combustible mixture, for injecting a small quantity of combustible gas into the combustion chamber in the immediate vicinity of the igniting device during the compression stroke of the engine and previous to the igniting operation.

In testimony whereof I have aiiixcd my signature in presence of two witnesses.

BORIS l'iO'lliOWSKl.

Witnesses Lrvmos'ron Ennnr, HENRY Baunus. 

